With the help of two examples name the map and reduce function purpose
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Can we submit the mapreduce job from slave node?
What happens when a datanode fails ?
How to handle record boundaries in Text files or Sequence files in MapReduce InputSplits?
what are the basic parameters of a Mapper?
What are ‘reduces’?
Where is Mapper output stored?
How data is spilt in Hadoop?
What is the purpose of textinputformat?
What is the relationship between Job and Task in Hadoop?
What is a "reducer" in Hadoop?
What is OutputCommitter?
What is a Distributed Cache in Hadoop?